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Table 8
X.21 DTE Serial Cable Pinout
Part Number 72-0683-02 Connections
From
Signal
Type
J1-5
MUX SEL
J1-
449 GND
36
J1-
449 DTR
Jumper
41
J1-
25
J1-
449 DTR
Jumper
41
J1-
25
J1-
449 SCTE
Jumper
43
J1-
27
J1-1
449 TXD
Twisted Pair J2-2
J1-
34
J1-4
449 RTS
Twisted Pair J2-3
J1-
20
J1-
449 RXD
Twisted Pair J2-4
35
J1-
19
J1-
449 RLSD
Twisted Pair J2-5
10
J1-
26
J1-2
449 SCT
Twisted Pair J2-6
J1-
18
1. Any pin not referenced on a connector is not connected.
1
To
Signal
J1-
GND
38
J2-8
X.21 GND
J1-6
449 CTS
J1-
22
J1-8
449 DSR
J1-
24
J1-
449 SCR
37
J1-
21
X.21 TXD
J2-9
X.21 CTL
J2-
10
X.21 RXD
J2-11
X.21 IND
J2-
12
X.21 CLK
J2-
13
Reference
17
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